Symptom

The texture resolution or responsiveness appears to be downgraded on FME's 3D pdf output.

Cause

The 3d rendering settings were incorrect in Adobe Reader.

Resolution

Go to Adobe Reader's Edit | Preferences

1. Under the 3D & Multimedia category, try toggling the 3D rendering setting between 'Direct X' and 'Software'. Also try enabling hardware rendering for legacy video cards. Depending on your hardware and operating system config, one of these options may work better than the others.